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105 lines
2.1 KiB
C
105 lines
2.1 KiB
C
/*
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* kicad/pl-render.c - RenderKiCad page layout
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*
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* Written 2016 by Werner Almesberger
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* Copyright 2016 by Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include "misc/util.h"
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#include "misc/diag.h"
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#include "gfx/style.h"
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#include "gfx/gfx.h"
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#include "kicad/pl-common.h"
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#include "kicad/pl.h"
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/*
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* Eeschema works in mil
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* Page layouts are in mm
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*/
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static int mil(float mm)
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{
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return mm / 25.4 * 1000;
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}
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static int cx(int x, int dx, int xo, int xe)
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{
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return dx >= 0 ? xo + x : xe - x;
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}
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static int cy(int y, int dy, int yo, int ye)
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{
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return dy >= 0 ? yo + y : ye - y;
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}
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static void render_obj(const struct pl_ctx *pl, const struct pl_obj *obj,
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unsigned i, int w, int h)
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{
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int xo = mil(pl->l);
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int yo = mil(pl->r);
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int xe = w - mil(pl->t);
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int ye = h - mil(pl->b);
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int x = mil(obj->x + i * obj->incrx);
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int y = mil(obj->y + i * obj->incry);
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int ex = mil(obj->ex + i * obj->incrx);
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int ey = mil(obj->ey + i * obj->incry);
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int ww = xe - xo;
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int hh = ye - yo;
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if (x < 0 || y < 0 || ex < 0 || ey < 0)
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return;
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if (x > ww || y > hh || ex > ww || ey > hh)
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return;
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switch (obj->type) {
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case pl_obj_rect:
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gfx_rect(
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cx(x, obj->dx, xo, xe), cy(y, obj->dy, yo, ye),
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cx(ex, obj->edx, xo, xe), cy(ey, obj->edy, yo, ye),
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COLOR_COMP_DWG, COLOR_NONE, LAYER_COMP_DWG);
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break;
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case pl_obj_line: {
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int vx[] = {
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cx(x, obj->dx, xo, xe),
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cx(ex, obj->edx, xo, xe)
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};
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int vy[] = {
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cy(y, obj->dy, yo, ye),
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cy(ey, obj->edy, yo, ye)
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};
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gfx_poly(2, vx, vy,
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COLOR_COMP_DWG, COLOR_NONE, LAYER_COMP_DWG);
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}
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break;
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default:
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break;
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}
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}
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void pl_render(struct pl_ctx *pl, int w, int h)
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{
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const struct pl_obj *obj;
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int i;
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for (obj = pl->objs; obj; obj = obj->next)
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for (i = 0; i != obj->repeat; i++)
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render_obj(pl, obj, i, w, h);
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}
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